MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, specifically flagged as a phishing trojan. Static analysis revealed it functions as a link farm, containing numerous URLs pointing to external resources. Several of these URLs are hosted on compromised WordPress sites or disposable domains, indicating a likely intent to lure users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://flardochform.se/userfiles/file/15721386685.pdf In PDF document text
- http://consulcongress.it/uploads/assets/file/mafejadusujug.pdfIn PDF document text
- http://packamate.com/userfiles/76088456830.pdfIn PDF document text
- http://kondicionery-ivanteevka.ru/upload_picture/file/28220583877.pdfIn PDF document text
- http://www.biosafety.biz/ckfinder/userfiles/files/46459522924.pdfIn PDF document text
- https://indirimlipin.com/calisma2/files/uploads/fisegikesivi.pdfIn PDF document text
- http://www.ccengis.be/applications/ckeditor/addons/ckeditor/ckfinder/userfiles/files/31563627892.pdfIn PDF document text
- https://iimranchi.ac.in/ckfinder/uploads/userfiles/files/36982859045.pdfIn PDF document text
- https://chongtham68.com/app/webroot/uploads/files/kerubujewuj.pdfIn PDF document text
- http://aerotechgroup.ru/img/outer/files/88696771644.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d86c903450---58187544490.pdfIn PDF document text
- http://trieuduong.com/images/Download/moxatutamepese.pdfIn PDF document text
- http://abwnickersonplaza.com/uploads/files/babaxeruropivipuxad.pdfIn PDF document text
- http://jjkxmy.com/upload/files/202109162156424752.pdfIn PDF document text
- http://esipro.lu/userfiles/file/49898399720.pdfIn PDF document text
- http://anthonyjcincottalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/woxegimibiwupejim.pdfIn PDF document text
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16164a9453fec8---ramejuwelabibomazidefil.pdfIn PDF document text
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1615efe1ee25cc---mupozalolarusuf.pdfIn PDF document text
- https://riosemarescentrodemergulho.com/ckfinder/files/fasusejapefokagiwo.pdfIn PDF document text
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/16134eb4249526---44575351158.pdfIn PDF document text
- https://x-software.cz/data/file/botelasasukanonenu.pdfIn PDF document text
- https://mamotato.ro/userfiles/file/37775572343.pdfIn PDF document text
- http://olsztyntransportmedyczny.pl/userfiles/file/80825619628.pdfIn PDF document text
- http://ashioke.com/images/library/File/mafopurati.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/Z3ufxtS7Wvw/uplcv?utm_term=are+liver+cells+haploid+or+diploidPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b43a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB43A | 15168 bytes |
SHA-256: 550bff644028ed9f28bce53cf914ed268562e2b9d6a1155c5cb17175379cd9b2 |
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font_01_sfnt_off0000da3b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA3B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f252.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF252 | 10456 bytes |
SHA-256: f34787aff078b6b1f4bf650981f311302d122d65fb02e3aeb6ef48fe4b414eca |
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